Two of the 18th century shipwreck off the coast of Costa Rica, which were believed to be pirated ships, confirmed two Danish Slave shipsThe museum said on Sunday.
“Studies of ships, bricks of cargo and clay pipes found during submarines,” identified the identity of two vessels affected in 1710, in 1710, The National Museum of Denmark said in a statement.
Marine archaeologists have identified the slave ships of Fridericus Quartus and Christianus Quintus, which, according to historical sources, were defeated in the shore of Central America in 1710, the museum said. The museum also released the images of Andreas Kalmeier Block and David Gregory, who were digging underwater and excavations of bricks and wood.
John Fhær Enchedal Nissen/Denmark National Museum. 
Fridericus Quartus was set on fire while Christian Quint was broken on the surf after its anchor line was cut. Until now, it was not clear where the ships were lost.
The museum added that Costa -Rica has long been known that there were two crashes in the waters of the Kakhuit National Park.
“However, for many years they have been considered pirate ships. But when American marine archaeologists found yellow bricks in one of the crashes in 2015, new questions about the history of ships appeared,” the museum said.
In 2023, underwater excavations were carried out. It was part of the new National Museum Research Center, NjordWhich, according to the museum, plans to excavate several Danish shipwrecks abroad.
Jacob Oling/National Museum of Denmark 
“The tests are very convincing, and we no longer doubt that these are the crash of two Danish slave owners,” said Gregory, Professor of Scientific Studies of the National Museum of Denmark.
“The brick is Danish, and the same goes for the wood, which further burned and soot from the fire. It goes well with the historical reports that say that one of the ships is burned,” Gregory added.
Employee of the sea archaeologist fleas. Who is also the curator of the museum. I called it “undoubtedly the most insane archaeological excavations I still participated.”
“Not only because it is very important for the local population, but also because it is one of the most dramatic ships in the history of Denmark, and now we know exactly where it happened,” said the marine archaeologist.
The Denmark government banned the transatlantic slave trade in 1792, but the country did not abolish slavery only half a century in 1847, the museum reports.